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  <xsd:element id="belfa_BusinessAcquisitionProFormaNetIncomeLossAttributableToNoncontrollingInterests" name="BusinessAcquisitionProFormaNetIncomeLossAttributableToNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_BusinessAcquisitionProFormaProfitLoss" name="BusinessAcquisitionProFormaProfitLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_BusinessCombinationConsiderationTransferredDeferredConsideration" name="BusinessCombinationConsiderationTransferredDeferredConsideration" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_BusinessCombinationConsiderationTransferredNet" name="BusinessCombinationConsiderationTransferredNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventoryNetOfTax" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventoryNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="belfa_CUIPowerMember" name="CUIPowerMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_CinchConnectivitySolutionsMember" name="CinchConnectivitySolutionsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_CommonStockOutstandingMember" name="CommonStockOutstandingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ContractWithCustomerLiabilityAdvancePaymentsReceived" name="ContractWithCustomerLiabilityAdvancePaymentsReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ContractWithCustomerLiabilityCurrencyTranslationAdjustment" name="ContractWithCustomerLiabilityCurrencyTranslationAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod" name="ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_CreditAndSecurityAgreementWithKeyBankMember" name="CreditAndSecurityAgreementWithKeyBankMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_CustomsDutiesAndImposedFines" name="CustomsDutiesAndImposedFines" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_DebtInstrumentAdditionalBorrowingCapacity" name="DebtInstrumentAdditionalBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_DebtInstrumentMaximumPrincipalBorrowingCapacityInForeignCurrencies" name="DebtInstrumentMaximumPrincipalBorrowingCapacityInForeignCurrencies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_DeferredCompensationArrangementVestingAge" name="DeferredCompensationArrangementVestingAge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="belfa_DeferredTaxAssetsLeaseAccounting" name="DeferredTaxAssetsLeaseAccounting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_DeferredTaxLiabilitiesUnfundedPensionLiability" name="DeferredTaxLiabilitiesUnfundedPensionLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_DefinedBenefitPlanNumberOfMonthlyPayments" name="DefinedBenefitPlanNumberOfMonthlyPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_DefinedBenefitPlanPercentageOfAverageBaseCompensationFiveConsecutiveYearsNormalRetirement" name="DefinedBenefitPlanPercentageOfAverageBaseCompensationFiveConsecutiveYearsNormalRetirement" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchFirst1EmployeeContribution" name="DefinedContributionPlanEmployerMatchingContributionPercentOfMatchFirst1EmployeeContribution" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchNext5EmployeeContribution" name="DefinedContributionPlanEmployerMatchingContributionPercentOfMatchNext5EmployeeContribution" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_EOSClaimFromPrincipalCommissionerOfCustomsMember" name="EOSClaimFromPrincipalCommissionerOfCustomsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_EOSPowerPanamaIncMember" name="EOSPowerPanamaIncMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EarnoutLiabilityAdjustment" name="EarnoutLiabilityAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_EarnoutPaymentMember" name="EarnoutPaymentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationAdjustmentsToTransitionTaxAmount" name="EffectiveIncomeTaxRateReconciliationAdjustmentsToTransitionTaxAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationAdjustmentsToTransitionTaxPercent" name="EffectiveIncomeTaxRateReconciliationAdjustmentsToTransitionTaxPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefits" name="EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationDeductionIntercompanyBadDebtAmount" name="EffectiveIncomeTaxRateReconciliationDeductionIntercompanyBadDebtAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationDeductionIntercompanyBadDebtPercent" name="EffectiveIncomeTaxRateReconciliationDeductionIntercompanyBadDebtPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationDeductionSection162LimitationAmount" name="EffectiveIncomeTaxRateReconciliationDeductionSection162LimitationAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationDeductionSection162LimitationPercent" name="EffectiveIncomeTaxRateReconciliationDeductionSection162LimitationPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsOtherAmount" name="EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsOtherAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsOtherPercent" name="EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsOtherPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_EffectiveIncomeTaxRateReconciliationTaxCreditsResearchPercentage" name="EffectiveIncomeTaxRateReconciliationTaxCreditsResearchPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_EnerconTechnologiesLtdMember" name="EnerconTechnologiesLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ExcessiveDividendRateOfClassBOverClassA" name="ExcessiveDividendRateOfClassBOverClassA" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="belfa_ExcessiveUndistributedEarningsAllocationRateOfClassBOverClassA" name="ExcessiveUndistributedEarningsAllocationRateOfClassBOverClassA" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="belfa_FederalAndStateAndLocalAuthorityMember" name="FederalAndStateAndLocalAuthorityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_Ff3Member" name="Ff3Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_ForwardRateMember" name="ForwardRateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_ClassACommonStock010ParValueCustomMember" name="ClassACommonStock010ParValueCustomMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_ClassBCommonStock010ParValueCustomMember" name="ClassBCommonStock010ParValueCustomMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_FullAchievementOfEarnoutMember" name="FullAchievementOfEarnoutMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_GainOnDerecognitionOfCallOptionLiability" name="GainOnDerecognitionOfCallOptionLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ImpairmentOfEquityMethodInvestmentAndRelatedPartyNotes" name="ImpairmentOfEquityMethodInvestmentAndRelatedPartyNotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_IncomeTaxExpenseBenefitOnReversalOfInterestAndPenalties" name="IncomeTaxExpenseBenefitOnReversalOfInterestAndPenalties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_IncomeTaxReconciliationTaxCreditsResearchAmount" name="IncomeTaxReconciliationTaxCreditsResearchAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_IncomeTaxReductionFromCapitalizedResearchAndDevelopmentExpenditures" name="IncomeTaxReductionFromCapitalizedResearchAndDevelopmentExpenditures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_IncreaseDecreaseInCashSurrenderValue" name="IncreaseDecreaseInCashSurrenderValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_IndefinitelivedIntangibleAssetsAccumulatedAmortization" name="IndefinitelivedIntangibleAssetsAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_IndefinitelivedIntangibleAssetsExcludingGoodwillNet" name="IndefinitelivedIntangibleAssetsExcludingGoodwillNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_IndemnificationPeriod" name="IndemnificationPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_IndustrialTechnologyAndDataSolutionsSegmentMember" name="IndustrialTechnologyAndDataSolutionsSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_InnolectricAgMember" name="InnolectricAgMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_IntangibleAssetsExcludingTrademarksMember" name="IntangibleAssetsExcludingTrademarksMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_IntangibleAssetsPercentOfTotalAssets" name="IntangibleAssetsPercentOfTotalAssets" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_InvestmentsHeldInRabbiTrustMember" name="InvestmentsHeldInRabbiTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LeaseSupplementalBalanceSheetInformationTableTextBlock" name="LeaseSupplementalBalanceSheetInformationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LeasesSupplementalCashFlowInformationTableTextBlock" name="LeasesSupplementalCashFlowInformationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_LessThan90OfEarnoutMember" name="LessThan90OfEarnoutMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LesseeOperatingAndFinancingLeaseLiabilityMaturityTableTextBlock" name="LesseeOperatingAndFinancingLeaseLiabilityMaturityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LineOfCreditFacilityCommitmentAmount" name="LineOfCreditFacilityCommitmentAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_LineOfCreditFacilityCommitmentIncrease" name="LineOfCreditFacilityCommitmentIncrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LineOfCreditFacilityIncrementalExtensionOfCredit" name="LineOfCreditFacilityIncrementalExtensionOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LineOfCreditFacilityPercentageOfCapitalStockOfForeignSubsidiariesCollateralizedSecurity" name="LineOfCreditFacilityPercentageOfCapitalStockOfForeignSubsidiariesCollateralizedSecurity" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_LoansAndLeasesReceivableInterestRate" name="LoansAndLeasesReceivableInterestRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="belfa_LongtermDebtGrossCurrentMaturities" name="LongtermDebtGrossCurrentMaturities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_LongtermDebtGrossNoncurrent" name="LongtermDebtGrossNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="belfa_MacauMember" name="MacauMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_MarketPriceRiskAdjustmentMember" name="MarketPriceRiskAdjustmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_MoneyMarketFundsRabbiTrustMember" name="MoneyMarketFundsRabbiTrustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_NonqualifiedDeferredCompensationPlanMember" name="NonqualifiedDeferredCompensationPlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_NumberOfCustomers" name="NumberOfCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_NumberOfIndustryInWhichEntityOperates" name="NumberOfIndustryInWhichEntityOperates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_OperatingAndFinanceLeasesRemainingLeaseTerm" name="OperatingAndFinanceLeasesRemainingLeaseTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_PatentsLicensesAndTechnologyMember" name="PatentsLicensesAndTechnologyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_PaymentForCustomsDutiesAndImposedFinesAndPenalties" name="PaymentForCustomsDutiesAndImposedFinesAndPenalties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_PaymentsToAcquireBusinessesNetOfAdjustments" name="PaymentsToAcquireBusinessesNetOfAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_PercentageOfGrossProfit" name="PercentageOfGrossProfit" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_PercentageOfParticipantsAnnualBaseSalaryReceivedByBeneficiaryFollowingFourYearsFromDateOfDeath" name="PercentageOfParticipantsAnnualBaseSalaryReceivedByBeneficiaryFollowingFourYearsFromDateOfDeath" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_PercentageOfParticipantsAnnualBaseSalaryReceivedByBeneficiaryOneYearFromDateOfDeath" name="PercentageOfParticipantsAnnualBaseSalaryReceivedByBeneficiaryOneYearFromDateOfDeath" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_PerformanceStockUnitsMember" name="PerformanceStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_PowerSolutionsAndProtectionMember" name="PowerSolutionsAndProtectionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ProductReturnsPolicyTextBlock" name="ProductReturnsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_RedeemableNoncontrollingInterestMeasurementInput" name="RedeemableNoncontrollingInterestMeasurementInput" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant"/>
  <xsd:element id="belfa_RedeemableNoncontrollingInterestPolicyTextBlock" name="RedeemableNoncontrollingInterestPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_RedemptionValueAdjustmentAttributableToNoncontrollingInterest" name="RedemptionValueAdjustmentAttributableToNoncontrollingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_RedemptionValueAdjustmentOnRedeemableNoncontrollingInterest" name="RedemptionValueAdjustmentOnRedeemableNoncontrollingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_RelatedPartyLoanMember" name="RelatedPartyLoanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_RestrucrutingCostsReversal" name="RestrucrutingCostsReversal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_RestructuringCashPaymentsAndOtherSettlements" name="RestructuringCashPaymentsAndOtherSettlements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_RetirementFundCoveringHongKongBasedEmployeesMember" name="RetirementFundCoveringHongKongBasedEmployeesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ScheduleOfCashPaidForIncomeTaxesTableTextBlock" name="ScheduleOfCashPaidForIncomeTaxesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ScheduleOfChangesInAccumulatedOtherComprehensiveIncomeLossByComponentTableTextBlock" name="ScheduleOfChangesInAccumulatedOtherComprehensiveIncomeLossByComponentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ScheduleOfExcessOfEstimatedFairValuesOverCarryingValueIncludingGoodwillTableTextBlock" name="ScheduleOfExcessOfEstimatedFairValuesOverCarryingValueIncludingGoodwillTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsTableTextBlock" name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_SellersNoteMember" name="SellersNoteMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsForfeiturerate" name="SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsForfeiturerate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsGrantDateClosingPrice" name="SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsGrantDateClosingPrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesEarnedComparedToTargetPercentage" name="SharebasedCompensationArrangementBySharebasedPaymentAwardSharesEarnedComparedToTargetPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_SharesHeldInPlan" name="SharesHeldInPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="belfa_SlovakiaMember" name="SlovakiaMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_SofrAdditionalRate" name="SofrAdditionalRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_SofrWithMaturityOfOneMonthMember" name="SofrWithMaturityOfOneMonthMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_The2020EquityCompensationPlanMember" name="The2020EquityCompensationPlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_The2021SwapsMember" name="The2021SwapsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_The2021SwapsTwoMember" name="The2021SwapsTwoMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="belfa_TotalFinanceLeaseLiability" name="TotalFinanceLeaseLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="belfa_UnrecognizedTaxBenefitsDecreaseResultingFromSettlementsWithTaxingAuthoritiesAndFromLapseOfApplicableStatuteOfLimitations" name="UnrecognizedTaxBenefitsDecreaseResultingFromSettlementsWithTaxingAuthoritiesAndFromLapseOfApplicableStatuteOfLimitations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="belfa_UnrecognizedTaxBenefitsPeriodIncreaseDecreasePercent" name="UnrecognizedTaxBenefitsPeriodIncreaseDecreasePercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_WellsFargoBankMember" name="WellsFargoBankMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-1-description-of-business-and-summary-of-significant-accounting-policies-basic-and-diluted-net-earnings-per-common-share-details" name="statement-statement-note-1-description-of-business-and-summary-of-significant-accounting-policies-basic-and-diluted-net-earnings-per-common-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-1-description-of-business-and-summary-of-significant-accounting-policies-held-to-maturity-securities-details" name="statement-statement-note-1-description-of-business-and-summary-of-significant-accounting-policies-held-to-maturity-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-10-income-taxes-components-of-deferred-income-tax-assets-details" name="statement-statement-note-10-income-taxes-components-of-deferred-income-tax-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-10-income-taxes-liability-for-uncertain-tax-positions-details" name="statement-statement-note-10-income-taxes-liability-for-uncertain-tax-positions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-10-income-taxes-reconciliation-of-taxes-on-income-details" name="statement-statement-note-10-income-taxes-reconciliation-of-taxes-on-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-13-derivative-instruments-and-hedging-activities-derivative-financial-instruments-effects-on-accumulated-other-comprehensive-loss-details" name="statement-statement-note-13-derivative-instruments-and-hedging-activities-derivative-financial-instruments-effects-on-accumulated-other-comprehensive-loss-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-14-segments-segment-information-details" name="statement-statement-note-14-segments-segment-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-15-retirement-fund-and-profit-sharing-plan-benefit-payments-expected-to-be-paid-details" name="statement-statement-note-15-retirement-fund-and-profit-sharing-plan-benefit-payments-expected-to-be-paid-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-15-retirement-fund-and-profit-sharing-plan-changes-in-plan-assets-and-benefit-obligation-details" name="statement-statement-note-15-retirement-fund-and-profit-sharing-plan-changes-in-plan-assets-and-benefit-obligation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-15-retirement-fund-and-profit-sharing-plan-components-of-serp-expense-details" name="statement-statement-note-15-retirement-fund-and-profit-sharing-plan-components-of-serp-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-15-retirement-fund-and-profit-sharing-plan-recognized-in-accumulated-other-comprehensive-loss-details" name="statement-statement-note-15-retirement-fund-and-profit-sharing-plan-recognized-in-accumulated-other-comprehensive-loss-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-15-retirement-fund-and-profit-sharing-plan-tables" name="statement-statement-note-15-retirement-fund-and-profit-sharing-plan-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-15-retirement-fund-and-profit-sharing-plan-weighted-average-assumptions-used-in-determining-the-periodic-net-cost-and-benefit-obligation-details" name="statement-statement-note-15-retirement-fund-and-profit-sharing-plan-weighted-average-assumptions-used-in-determining-the-periodic-net-cost-and-benefit-obligation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-16-sharebased-compensation-summary-of-restricted-stock-activity-details" name="statement-statement-note-16-sharebased-compensation-summary-of-restricted-stock-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-16-sharebased-compensation-tables" name="statement-statement-note-16-sharebased-compensation-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-18-leases-components-of-lease-expense-details" name="statement-statement-note-18-leases-components-of-lease-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-18-leases-maturities-of-lease-liabilities-details" name="statement-statement-note-18-leases-maturities-of-lease-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-18-leases-supplemental-balance-sheet-information-details" name="statement-statement-note-18-leases-supplemental-balance-sheet-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-18-leases-supplemental-balance-sheet-information-details-parentheticals" name="statement-statement-note-18-leases-supplemental-balance-sheet-information-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-18-leases-supplemental-cash-flow-information-related-to-leases-details" name="statement-statement-note-18-leases-supplemental-cash-flow-information-related-to-leases-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-18-leases-tables" name="statement-statement-note-18-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-20-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details" name="statement-statement-note-20-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-20-accumulated-other-comprehensive-loss-changes-in-accumulated-other-comprehensive-loss-by-component-details" name="statement-statement-note-20-accumulated-other-comprehensive-loss-changes-in-accumulated-other-comprehensive-loss-by-component-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-3-acquisition-schedule-of-business-acquisition-details" name="statement-statement-note-3-acquisition-schedule-of-business-acquisition-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-3-acquisition-schedule-of-intangible-assets-acquired-details" name="statement-statement-note-3-acquisition-schedule-of-intangible-assets-acquired-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-3-acquisition-schedule-of-pro-forma-information-details" name="statement-statement-note-3-acquisition-schedule-of-pro-forma-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-4-revenue-contract-assets-and-contract-liabilities-details" name="statement-statement-note-4-revenue-contract-assets-and-contract-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-4-revenue-disaggregation-of-revenue-by-product-group-and-sales-channel-details" name="statement-statement-note-4-revenue-disaggregation-of-revenue-by-product-group-and-sales-channel-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-5-goodwill-and-other-intangible-assets-components-of-definite-and-indefinitelived-intangible-assets-details" name="statement-statement-note-5-goodwill-and-other-intangible-assets-components-of-definite-and-indefinitelived-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-5-goodwill-and-other-intangible-assets-estimated-amortization-expense-details" name="statement-statement-note-5-goodwill-and-other-intangible-assets-estimated-amortization-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-5-goodwill-and-other-intangible-assets-estimated-fair-values-over-carrying-value-including-goodwill-details" name="statement-statement-note-5-goodwill-and-other-intangible-assets-estimated-fair-values-over-carrying-value-including-goodwill-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-6-fair-value-measurements-fair-value-of-earnout-liabilities-details" name="statement-statement-note-6-fair-value-measurements-fair-value-of-earnout-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="belfa_statement-statement-note-8-inventories-components-of-inventories-details" name="statement-statement-note-8-inventories-components-of-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-8-inventories-tables" name="statement-statement-note-8-inventories-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-9-property-plant-and-equipment-net-property-plant-and-equipment-details" name="statement-statement-note-9-property-plant-and-equipment-net-property-plant-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-note-9-property-plant-and-equipment-net-tables" name="statement-statement-note-9-property-plant-and-equipment-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-schedule-ii-valuation-and-qualifying-accounts-tables" name="statement-statement-schedule-ii-valuation-and-qualifying-accounts-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-schedule-ii-valuation-and-qualifying-accounts-valuation-and-qualifying-accounts-details" name="statement-statement-schedule-ii-valuation-and-qualifying-accounts-valuation-and-qualifying-accounts-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="belfa_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
